<template>
  <div>
    <el-form
      :model="localFormConfig"
      size="small"
      label-position="left"
      label-width="120px"
      class="setting-form"
      @submit.prevent
    >
      <el-collapse v-model="formActiveCollapseNames" class="setting-collapse">
        <el-collapse-item name="1" :title="i18nt('designer.setting.basicSetting')">
          <el-form-item :label="i18nt('designer.setting.formSize')">
            <el-select v-model="localFormConfig.size">
              <el-option
                v-for="item in formSizes"
                :key="item.value"
                :label="item.label"
                :value="item.value"
              />
            </el-select>
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.labelPosition')">
            <el-radio-group v-model="localFormConfig.labelPosition" class="radio-group-custom">
              <el-radio-button value="left">{{
                i18nt('designer.setting.leftPosition')
              }}</el-radio-button>
              <el-radio-button value="top">{{
                i18nt('designer.setting.topPosition')
              }}</el-radio-button>
            </el-radio-group>
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.labelAlign')">
            <el-radio-group v-model="localFormConfig.labelAlign" class="radio-group-custom">
              <el-radio-button value="label-left-align">{{
                i18nt('designer.setting.leftAlign')
              }}</el-radio-button>
              <el-radio-button value="label-center-align">{{
                i18nt('designer.setting.centerAlign')
              }}</el-radio-button>
              <el-radio-button value="label-right-align">{{
                i18nt('designer.setting.rightAlign')
              }}</el-radio-button>
            </el-radio-group>
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.labelWidth')">
            <el-input-number
              :model-value="Number(localFormConfig.labelWidth)"
              @update:model-value="(val) => (localFormConfig.labelWidth = val)"
              :min="0"
              style="width: 100%"
            />
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.formCss')">
            <el-button type="info" icon="el-icon-edit" plain round @click="editFormCss">{{
              i18nt('designer.setting.addCss')
            }}</el-button>
          </el-form-item>
          <!-- -->
          <el-form-item :label="i18nt('designer.setting.customClass')">
            <el-select
              v-model="localFormConfig.customClass"
              multiple
              filterable
              allow-create
              default-first-option
            >
              <el-option
                v-for="(item, idx) in cssClassList"
                :key="idx"
                :label="item"
                :value="item"
              />
            </el-select>
          </el-form-item>
          <!-- -->
          <el-form-item :label="i18nt('designer.setting.globalFunctions')">
            <el-button type="info" icon="el-icon-edit" plain round @click="editGlobalFunctions">{{
              i18nt('designer.setting.addEventHandler')
            }}</el-button>
          </el-form-item>
          <el-form-item label-width="0">
            <el-divider class="custom-divider">{{
              i18nt('designer.setting.formSFCSetting')
            }}</el-divider>
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.formModelName')">
            <el-input type="text" v-model="localFormConfig.modelName" />
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.formRefName')">
            <el-input type="text" v-model="localFormConfig.refName" />
          </el-form-item>
          <el-form-item :label="i18nt('designer.setting.formRulesName')">
            <el-input type="text" v-model="localFormConfig.rulesName" />
          </el-form-item>
        </el-collapse-item>

        <el-collapse-item
          v-if="showEventCollapse()"
          name="2"
          :title="i18nt('designer.setting.eventSetting')"
        >
          <el-form-item label="onFormCreated" label-width="150px">
            <el-button
              type="info"
              icon="el-icon-edit"
              plain
              round
              @click="editFormEventHandler('onFormCreated')"
            >
              {{ i18nt('designer.setting.addEventHandler') }}</el-button
            >
          </el-form-item>
          <el-form-item label="onFormMounted" label-width="150px">
            <el-button
              type="info"
              icon="el-icon-edit"
              plain
              round
              @click="editFormEventHandler('onFormMounted')"
            >
              {{ i18nt('designer.setting.addEventHandler') }}</el-button
            >
          </el-form-item>
          <!-- -->
          <el-form-item label="onFormDataChange" label-width="150px">
            <el-button
              type="info"
              icon="el-icon-edit"
              plain
              round
              @click="editFormEventHandler('onFormDataChange')"
            >
              {{ i18nt('designer.setting.addEventHandler') }}</el-button
            >
          </el-form-item>
          <!-- -->
          <!--
          <el-form-item label="onFormValidate">
            <el-button type="info" icon="el-icon-edit" plain round @click="editFormEventHandler('onFormValidate')">
              {{i18nt('designer.setting.addEventHandler')}}</el-button>
          </el-form-item>
          -->
        </el-collapse-item>
      </el-collapse>
    </el-form>

    <div
      v-if="showFormEventDialogFlag"
      class=""
      v-drag="['.drag-dialog.el-dialog', '.drag-dialog .el-dialog__header']"
    >
      <el-dialog
        :title="i18nt('designer.setting.editFormEventHandler')"
        v-model="showFormEventDialogFlag"
        :show-close="true"
        class="drag-dialog small-padding-dialog"
        append-to-body
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :destroy-on-close="true"
      >
        <el-alert type="info" :closable="false" :title="'form.' + eventParamsMap[curEventName]" />
        <code-editor
          :mode="'javascript'"
          :readonly="false"
          v-model="formEventHandlerCode"
          ref="ecEditor"
        />
        <el-alert type="info" :closable="false" title="}" />
        <template #footer>
          <div class="dialog-footer">
            <el-button @click="showFormEventDialogFlag = false">
              {{ i18nt('designer.hint.cancel') }}</el-button
            >
            <el-button type="primary" @click="saveFormEventHandler">
              {{ i18nt('designer.hint.confirm') }}</el-button
            >
          </div>
        </template>
      </el-dialog>
    </div>

    <div
      v-if="showEditFormCssDialogFlag"
      class=""
      v-drag="['.drag-dialog.el-dialog', '.drag-dialog .el-dialog__header']"
    >
      <el-dialog
        :title="i18nt('designer.setting.formCss')"
        v-model="showEditFormCssDialogFlag"
        :show-close="true"
        class="drag-dialog small-padding-dialog"
        append-to-body
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :destroy-on-close="true"
      >
        <code-editor :mode="'css'" :readonly="false" v-model="formCssCode" />
        <template #footer>
          <div class="dialog-footer">
            <el-button @click="showEditFormCssDialogFlag = false">
              {{ i18nt('designer.hint.cancel') }}</el-button
            >
            <el-button type="primary" @click="saveFormCss">
              {{ i18nt('designer.hint.confirm') }}</el-button
            >
          </div>
        </template>
      </el-dialog>
    </div>

    <div
      v-if="showEditFunctionsDialogFlag"
      class=""
      v-drag="['.drag-dialog.el-dialog', '.drag-dialog .el-dialog__header']"
    >
      <el-dialog
        :title="i18nt('designer.setting.globalFunctions')"
        v-model="showEditFunctionsDialogFlag"
        :show-close="true"
        class="drag-dialog small-padding-dialog"
        append-to-body
        :close-on-click-modal="false"
        :close-on-press-escape="false"
        :destroy-on-close="true"
      >
        <code-editor
          :mode="'javascript'"
          :readonly="false"
          v-model="functionsCode"
          ref="gfEditor"
        />
        <template #footer>
          <div class="dialog-footer">
            <el-button @click="showEditFunctionsDialogFlag = false">
              {{ i18nt('designer.hint.cancel') }}</el-button
            >
            <el-button type="primary" @click="saveGlobalFunctions">
              {{ i18nt('designer.hint.confirm') }}</el-button
            >
          </div>
        </template>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import i18n from '@/utils/i18n'
import CodeEditor from '@/components/variant-form3/code-editor/index.vue'
import { deepClone, insertCustomCssToHead, insertGlobalFunctionsToHtml } from '@/utils/util'
import { reactive, toRefs } from 'vue'
export default {
  name: 'FormSetting',
  components: {
    CodeEditor
  },
  mixins: [i18n],
  inject: ['getDesignerConfig'],
  props: {
    designer: Object,
    formConfig: Object
  },
  data() {
    return {
      designerConfig: this.getDesignerConfig(),
      localDesigner: this.designer,
      localFormConfig: this.formConfig,
      formActiveCollapseNames: ['1', '2'],

      formSizes: [
        { label: 'default', value: '' },
        { label: 'large', value: 'large' },
        //{label: 'medium', value: 'medium'},
        { label: 'small', value: 'small' }
        //{label: 'mini', value: 'mini'},
      ],

      showEditFormCssDialogFlag: false,
      formCssCode: '',
      cssClassList: [],

      showEditFunctionsDialogFlag: false,
      functionsCode: '',

      showFormEventDialogFlag: false,
      formEventHandlerCode: '',
      curEventName: '',

      eventParamsMap: {
        onFormCreated: 'onFormCreated() {',
        onFormMounted: 'onFormMounted() {',
        onFormDataChange:
          'onFormDataChange(fieldName, newValue, oldValue, formModel, subFormName, subFormRowIndex) {'
        //'onFormValidate':     'onFormValidate() {',
      }
    }
  },
  watch: {
    // Watch for changes in the local model and emit an event to update the parent component
    localDesigner(newValue) {
      this.$emit('update:designer', this.localDesigner)
    },

    // Also make sure to update the local model if the prop changes externally
    designer(newVal) {
      this.localDesigner = newVal
    },
    localFormConfig(newValue) {
      this.$emit('update:formConfig', this.localFormConfig)
    },

    // Also make sure to update the local model if the prop changes externally
    formConfig(newVal) {
      this.localFormConfig = newVal
    }
  },
  created() {
    //导入表单JSON后需要重新加载自定义CSS样式！！！
    this.localDesigner.handleEvent('form-json-imported', () => {
      this.formCssCode = this.formConfig.cssCode
      insertCustomCssToHead(this.formCssCode)
      this.extractCssClass()
      this.localDesigner.emitEvent('form-css-updated', deepClone(this.cssClassList))
    })
  },
  mounted() {
    /* SettingPanel和FormWidget为兄弟组件, 在FormWidget加载formConfig时，
         此处SettingPanel可能无法获取到formConfig.cssCode, 故加个延时函数！ */
    setTimeout(() => {
      this.formCssCode = this.localFormConfig.cssCode
      insertCustomCssToHead(this.formCssCode)
      this.extractCssClass()
      this.localDesigner.emitEvent('form-css-updated', deepClone(this.cssClassList))
    }, 1200)
  },
  methods: {
    showEventCollapse() {
      if (this.designerConfig['eventCollapse'] === undefined) {
        return true
      }

      return !!this.designerConfig['eventCollapse']
    },

    editFormCss() {
      this.formCssCode = this.localDesigner.formConfig.cssCode
      this.showEditFormCssDialogFlag = true
    },

    extractCssClass() {
      let regExp = /\..*{/g
      let result = this.formCssCode.match(regExp)
      let cssNameArray = []

      if (!!result && result.length > 0) {
        result.forEach((rItem) => {
          let classArray = rItem.split(',') //切分逗号分割的多个class
          if (classArray.length > 0) {
            classArray.forEach((cItem) => {
              let caItem = cItem.trim()
              if (caItem.indexOf('.', 1) !== -1) {
                //查找第二个.位置
                let newClass = caItem.substring(caItem.indexOf('.') + 1, caItem.indexOf('.', 1)) //仅截取第一、二个.号之间的class
                if (!!newClass) {
                  cssNameArray.push(newClass.trim())
                }
              } else if (caItem.indexOf(' ') !== -1) {
                //查找第一个空格位置
                let newClass = caItem.substring(caItem.indexOf('.') + 1, caItem.indexOf(' ')) //仅截取第一、二个.号之间的class
                if (!!newClass) {
                  cssNameArray.push(newClass.trim())
                }
              } else {
                if (caItem.indexOf('{') !== -1) {
                  //查找第一个{位置
                  let newClass = caItem.substring(caItem.indexOf('.') + 1, caItem.indexOf('{'))
                  cssNameArray.push(newClass.trim())
                } else {
                  let newClass = caItem.substring(caItem.indexOf('.') + 1)
                  cssNameArray.push(newClass.trim())
                }
              }
            })
          }
        })
      }

      //this.cssClassList.length = 0
      this.cssClassList.splice(0, this.cssClassList.length) //清除数组必须用splice，length=0不会响应式更新！！
      this.cssClassList = Array.from(new Set(cssNameArray)) //数组去重
    },

    saveFormCss() {
      this.extractCssClass()
      this.localDesigner.formConfig.cssCode = this.formCssCode
      insertCustomCssToHead(this.formCssCode)
      this.showEditFormCssDialogFlag = false

      this.localDesigner.emitEvent('form-css-updated', deepClone(this.cssClassList))
    },

    editGlobalFunctions() {
      this.functionsCode = this.localDesigner.formConfig.functions
      this.showEditFunctionsDialogFlag = true
    },

    saveGlobalFunctions() {
      const codeHints = this.$refs.gfEditor.getEditorAnnotations()
      let syntaxErrorFlag = false
      if (!!codeHints && codeHints.length > 0) {
        codeHints.forEach((chItem) => {
          if (chItem.type === 'error') {
            syntaxErrorFlag = true
          }
        })

        if (syntaxErrorFlag) {
          ElMessage.error(this.i18nt('designer.setting.syntaxCheckWarning'))
          return
        }
      }

      this.localDesigner.formConfig.functions = this.functionsCode
      insertGlobalFunctionsToHtml(this.functionsCode)
      this.showEditFunctionsDialogFlag = false
    },

    editFormEventHandler(eventName) {
      this.curEventName = eventName
      this.formEventHandlerCode = this.localFormConfig[eventName]
      this.showFormEventDialogFlag = true
    },

    saveFormEventHandler() {
      const codeHints = this.$refs.ecEditor.getEditorAnnotations()
      let syntaxErrorFlag = false
      if (!!codeHints && codeHints.length > 0) {
        codeHints.forEach((chItem) => {
          if (chItem.type === 'error') {
            syntaxErrorFlag = true
          }
        })

        if (syntaxErrorFlag) {
          ElMessage.error(this.i18nt('designer.setting.syntaxCheckWarning'))
          return
        }
      }

      this.localFormConfig[this.curEventName] = this.formEventHandlerCode
      this.showFormEventDialogFlag = false
    }
  }
}
</script>

<style lang="scss" scoped>
.setting-form {
  :deep(.el-form-item__label) {
    font-size: 13px;
    //text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
  }

  :deep(.el-form-item--small.el-form-item) {
    margin-bottom: 10px;
  }

  .radio-group-custom {
    :deep(.el-radio-button__inner) {
      padding-left: 12px;
      padding-right: 12px;
    }
  }

  .custom-divider.el-divider--horizontal {
    margin: 10px 0;
  }
}

.setting-collapse {
  :deep(.el-collapse-item__content) {
    padding-bottom: 6px;
  }

  :deep(.el-collapse-item__header) {
    font-style: italic;
    font-weight: bold;
  }
}

.small-padding-dialog {
  :deep(.el-dialog__body) {
    padding: 6px 15px 12px 15px;
  }
}
</style>
